This station uses the WAREHOUSE mod, but can be changed to use vanilla.
The station consist of 4 stops, all should be named the same, and a stacker that can hold unlimited trains. Station is designed for a 1 Engine - 4 Wagon train - but can be easily changed to the size train you are using. Stations (if named the same) will work as one, there is a circuit which counts the items in the warehouses, and sends trains as needed to the correct station. Trains will wait in the stacker till they are called. There is also a line down the middle of the track to add fuel. (Picture shows two lines as i upgraded the trains to have another engine).